switchback
nounUK /ˈswɪtʃbæk/
US /ˈswɪtʃbæk/
A road or path that turns sharply back and forth to go up a hill.
The car climbed the mountain on a winding switchback.
OTHER MEANINGS
2. A railway track that zigzags up a steep slope.
The old train used a switchback to reach the top of the hill.
3. A roller coaster or ride that changes direction sharply.
The switchback made everyone scream with excitement.
4. A sharp change in direction or opinion.
His career took a switchback from law to art.